|
|
Hot Stamping Parameters Optimization of Boron Steel Using a Response Surface Methodology Based on Central Composite Design |
Ming-dong HUANG,Bao-yu WANG,Jing ZHOU |
School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083, China |
|
|
Abstract The effect of hot stamping parameters on the mechanical properties of 22MnB5 steel sheet with thickness of 1. 1 mm is studied. The considered parameters are austenization temperature (800-1000 ��), austenitizing soaking time (60-540 s), initial deformation temperature (560-800 ��) and tool temperature (20-220 ��). In order to obtain hot stamped parts with optimal mechanical properties, response surface methodology based on the central composite design has been employed to design the experiment matrix. Tensile strength of hot stamped parts is determined as the relation in the mathematical model. The optimal condition and objective effects of parameters are determined via this relation. The statistical analysis showed that all four factors significantly affect the tensile strength of the hot stamped parts. The optimum austenization temperature is found to be 918. 89 �� with the austenitizing soaking time, initial deformation temperature and tool temperature of 279. 45 s, 684. 69 �� and 21. 85 ��, respectively. These optimal hot stamping parameters prove to have high tensile strength (1631. 84 MPa) where deviation between predicted and actual response falls within 2%.
|
Received: 21 February 2014
Published: 05 June 2015
|
Fund:National Science and Technology Major Project of the Ministry of Science and Technology of China;Doctor Science Research Foundation of the Education Ministry of China |
|
|
|
[1] |
Hai-yan Tang*,Yong Wang,Guang-hui Wu,Peng Lan,Jia-quan Zhang. Inclusion evolution in 50CrVA spring steel by optimization of refining slag[J]. Chinese Journal of Iron and Steel, 2017, 24(9): 879-887. |
[2] |
Yong Li,Lei Fang. Robust multi-objective optimization of rolling schedule for tandem cold rolling based on evolutionary direction differential evolution algorithm[J]. Chinese Journal of Iron and Steel, 2017, 24(8): 795-802. |
[3] |
Wei Zhang,,Zheng-liang Xue,Ju-hua Zhang,Wei Wang,Chang-gui Cheng,Zong-shu Zou. Medium oxygen enriched blast furnace with top gas recycling strategy[J]. Chinese Journal of Iron and Steel, 2017, 24(8): 778-786. |
[4] |
Bang-fu Huang,,*,Nai-yuan Tian,Zhe Shi,,Zhi-wei Ma,. Steel ladle exchange models during steelmaking and continuous casting process[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 617-624. |
[5] |
Ming-bo Zhou,Jing-lin Tang,*,Jie Yang,Cun-yu Wang. Tailored properties of a novelly-designed press-hardened 22MnMoB steel[J]. Chinese Journal of Iron and Steel, 2017, 24(5): 508-512. |
[6] |
Qing Shao*,Tao Xu,Tatsuo Yoshino,Nan Song. Multi-objective optimization of gas metal arc welding parameters and sequences for low-carbon steel (Q345D) T-joints[J]. Chinese Journal of Iron and Steel, 2017, 24(5): 544-555. |
|
|
|
|